Description

The Sky-Watcher 100mm Esprit 80ED Triplet APO Refractor is a professional instrument for the most demanding and exacting astro-photographers. The air spaced apochromatic triplet lenses use the remarkable Ohara FPL-53 ED (extra low dispersion) glass, with exceptional colour correction over the entire visible spectrum there is no chromatic aberration even on bright objects! Knife edge baffles reduce internal reflections and increase contrast, helping to bring out faint structure in deep sky objects.

A 2-element field flattener is included to iron out the natural off-axis astigmatism and field curvature of the objective lens, leaving a fully corrected 42mm field of view. The Sky-Watcher exclusive Helinear Track 11:1 dual speed focuser is rock solid with zero image shift and a 3″ barrel to avoid vignetting. Designed with photography in mind, it sits on two tracks above and below the barrel to prevent flexure with a heavy camera attached, and is fully rotatable to perfectly frame a target on the sensor.

In The Box:

80/400 Apochromatic Refractor

Fixed Dew Shield

Field Flattener with M48 Thread

T2 Canon Camera Adapter

2″ Dielectric Star Diagonal

9×50 Right Angled Erect Image Diagonal

D Style dovetail Bar

2″ to 1.25″ Eyepiece Adaptor

Aluminium Foam-Lined Case

SPECIFICATIONS

Model

SWESPRIT80

Optical Design

Airspaced Apochromatic Triplet

Aperture

80

Focal Length

400mm

Focal Ratio

f/5

Diameter of the corrected field

33mm

Visual Back Focus

160mm

Resolving Power

1.50″

Stellar Limit Magnitude

11.8

Highest Practical Magnification

160X

Light gathering power (compared to the unaided eye)

131

Focuser

2.7″ Crayford dual speed with 2″ and 1.25″ adaptor

Optical Tube Length

450mm

Optical Tube Weight

4.05kg

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SKYWATCHER AUSTRALIA

It may seem silly but this was a night I’ll never forget. Got some good photos, but what I’ll remember is the good vibes and company. I tend to shoot alone at night. Honestly I think it’s because I feel more free being able to go where I want to, and at my own pace. No headlamps spilling into my shots. Etc. This year I’m just trying to enjoy my time more while out shooting, not getting locked behind the back of my camera and not getting annoyed or angry if “things don’t go my way.” It did use to be a problem I had, but I’m working on being more present and experiencing more of my surroundings. It was really nice spending a night with some cool dudes, thanks for the good memories guys 👌🏼🌌

Astro with RoRo shot this incredible image with the SkyWatcher EQ6-R Pro⁠

He says:At the end of our suns life, it will shed its outer layers as it runs low on fuel to burn. Shortly after, it will collapse into hot white dwarf and the intense heat and radiation will ionize the expanding shell causing these beautiful, and mournful displays of colours and shapes.

This stars death shell has expanded up to 1.5 light years from the origin star still visible at the center. If this were our solar system, it would have swallowed all the planets and traveled over 2,000 times farther away than Pluto.⁠Equipment:⁠SkyWatcher 190mm MakNewt⁠SkyWatcher EQ6-R Pro⁠ZWO ASI294MC Pro⁠ZWO 60mm Guidescope⁠ZWO ASI290MM Mini⁠IDAS D2 LPS Filter⁠⁠Capture Details:⁠375 x 45s @ 120 Gain & -10C⁠ ⁠50 x dark frames⁠1 superbias frame⁠Stacked & edited in Pixinsight⁠Final tweaks in Adobe Lightroom & Photoshop⁠